As part of the APS historic sites initiative, on October 5 APS President-elect Arthur Bienenstock (left) presented a plaque to MIT to commemorate the MIT Radiation Laboratory that played a key role in the development of radar during World War II. Receiving the plaque on behalf of MIT is Dean of Science Marc Kastner (center), while incoming physics department head Edmund Bertschinger looks on. The citation on the plaque reads “At this location, the MIT Radiation Laboratory was established in the fall of 1940 to develop microwave radar systems. Radar quickly took its place in all arenas of World War II and played a decisive role in the Allied victory. The laboratory closed on December 31, 1945.”